Israel donald boyer



(No Model.) 2 Sheets- Sheet 1.

I. D. BOYER.

GASH REGISTER AND INDICATOR.

No. 414,009. Patented Oct. 29, 1889.

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(No Model.) 2-Sheets-Sheet 2. vI. D. BOYER.

CASH REGISTER AND INDICATOR.

No. 414.009. Patented 0015.29, 1889.

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' UNITED STATES PATENT OFFICE.

ISRAEL DONALD BOYER, OF DAYTON, OI-IIO, ASSIGNOR TO THE NATIONAL OASI-I REGISTER COMPANY, OF SAME PLACE.

CASH REGISTER AND INDICATOR.

SPECIFICATION forming part of Letters Patent No. 414,009, dated October 29, 1889. Application filed July 8, 1889. Serial No. 316,749. (No model.) Patented in Canada July 12, 1889, No. 50,411.

To all whom it may concern;

Be it known that I, ISRAEL DONALD BOYER, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Cash Registers and Indicators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

The novelty of my invent-ion will be herein set forth, and specifically pointed out in the claims.

In the accompanying drawings, Figure 1 is a front view of a portion of a machine embodying my improvements, looking in the direction of the arrow in Fig. 2. Fig. 2 is a side elevation, in section, of a portion of the same. Fig. 8 is a detail in front elevation of a portion of the registering-shaft, the ratchet and driving-pinion thereon, and the clutch be tween the pinion and shaft.

The same letters of reference are used to indicate identical parts in all the figures.

The operating parts of the machine are inclosed in a suitable case or cabinet A, having its upper front portion formed of a slotted plate 13, through the slots in which extend and play the upper ends of the operating-key O, and provided at its upper central or rear portion with a glass-covered reading-opening D, through which suitable indicating-tablets are exposed to View. The operatingkeys O, of the shape shown, are pivoted on a shaft E, extending across the machine, and have rearward extensions F, the vertical portion of each key and its rear extension F forming a bell-crank lever, as shown.

Pivoted on a shaft G at the rear of the machine are a series of levers H, one for each key 0, and each connected at its forward end to the extension F of its corresponding key by slot-and-pin connection at a, so that when any key is operated by pulling its upper end forward to the end of its slot in the plate B its lever H is lifted to the position shown by the dotted lines in Fig. 2. Extending across all of the levers II, in front of their pivotal shaft G, is a vibrating bar I, supported in any suit able manner, as by side arms hung on the shaft G. This bar I rests on the tops of the levers H, and whenever any key is operated is lifted to the position shown by the dotted lines in Fig. 2.

Rigidly secured to a central shaft J, ex- 5 tending across the machine and supported in suitable bearings, is an arm K, carrying at its upper end a segment-rack L, which meshes with a pinion M on the registering shaft N, journaled in the upper rear part of the ma- 6o chine. The pinion M is loose on the shaft N, and one end of its hub is provided with clutch teeth arranged to engage corresponding teeth on the adjacent end of the hub 79, which is rigidly secured to the shaft N. (See Fig. 3.) 6 A coiled spring 0 surrounds the shaft N between the pinionM and a collard, secured upon the shaft N, and serves to press and normally hold the hub of the pinion M against the hub b and their teeth in engagement to effect a clutch between them, so that when the pinion M is turned forward by the downward movement of the rack L the shaftN is turned with it. The teeth of the clutch are made of the shape shown, so that in the backward turning of the pinion M on the return-stroke of the rack L the teeth of its hub can slip freely over those of the hub 7) against the pressure of the spring 0 and the shaft N re main stationary.

The registering shaft N is connected to and actuates any suitable or well-known. registering mechanism, whose particular construction forms no part of my invention, and which I therefore consider it unnecessary to illushate or describe.

Rig-idly secured to the shaft J are a series of forwardly-projecting arms 0, one for each key 0, and each connected to the rear extension of its appropriate key by a slotted link P, pivoted at its lower end to the extension F, and engaging by the slot at its upper end with a pin on the arm 0. The arms 0 may be rigidly secured to the shaft J in any suit able manner. In the drawings they are shown 5 as secured thereto by split hubs Q, each integral with its arm 0, which hubs embrace the shaft J and are clamped thereto by screws R, passed through the split ends of the hubs.

In this manner the arms O may be secured 10o upon the shaft J in different positions and adjusted as desired. It results from this conin Fig. 2.

struction and arrangement of the parts that when a key is operated by pulling its upper end forward to the end of its slot in the plate B, and its rear extension is thereby lifted, the shaft J will be rocked in its bearings, the rack L vibrated, and the pinion M andshaftN turned to actuate the registering mechanism, all as shown by the dotted" lines A coiled spring 6 serves to return the rack L to and yieldingly hold it in its normal position. 7

To avoid confusion in the drawings, I have shown in Fig. 2 only one key G and its associated parts; but it will be understood that the keys are arranged to move the shaft J and rack L different degrees, according to the values of the keys, and in the construction shownin the drawings this is accomplished by pivoting the lower ends of the links-P to the extensions F of the keys at different-distances from the pivotal shaft E of theZk-e-ys, those of the keys of lowest value being pivoted nearest said shaft and those of the highest value farthest from it. Thus the key shown inFig. 2. represents one of aboutthe middle valueof the series, andits linkP.

ispivoted to its extension F at suchdistance from the shaft E that the full operation of the key moves the segment-rack L about onevhalf .itsfull limit. It. will readily be seen that the operation of a key whose linkis piv-- one tooth, the twenty-five-cent key five teeth,

and the fifty-cent key ten teeth, thereby actuatingitheregistering mechanism to register five, twenty-five, and fifty cents, respectively, and this variable registration is brought about bythe adjustment of the links]? on the extensions F, as 'abovedescribed. This differential adjustment may be aided, if desired, by adj ust-ing the armsOin different positions on the shaft J, as before explained, and by varying the length of the slots in the upper ends of the links P, as will be readily understood.

The parts of the machine thus far described are'old andnotof my invention, and the same is, true of the indicating mechanism, which consistsof a series of figured tablets supported. in the upper central portion of the casej'and actuated in any suitable manner to expose their respective numbers at the reading ropening D. It is therefore t-hought'unnecessary to describe the old parts ofthe machine any further in order tov give a clear understanding of my own invention, which con'sistsin the application to such machines of novel and improved means for locking the registering mechanism from operation du ring. the resetting of an operated key.

In machines of this character, where a series of keys of different values actuate a common registering mechanism to different degrees to register the values of the respective keys, there is usually provided a key-arresier,which arrests a partially-operated key and prevents it being reset until it has been operated to its full extent and its full value registered, whereupon the arrester is thrown out of operation to permit the key to be reset to normal position. During this resetting of the key, unless special means be provided to prevent it, the key will be free to be pumped back and forth from a point near its normal position to the limit of its stroke and the registering mechanism be thereby actuated to register an indefinite amount. It is the object of my, present invention to prevent this pumping of the machine, and I have devised novel means for this purpose. (Shown more 'par' ticularlyiu Fig. 2.) Tightlysecured upon the shaft N in'any suitable manner, as bymakingit integral with the collar d, so that the'latt'er formsits hub, is a ratchet M, having preferably twenty equidistant teeth corresponding to the gears of the pinion M. 'A' weighted holding-dog M, engaging the ratchet, permits its free forward movement with the shaft N; upon the registering-stroke of a key and downward movement of the rack L, but holds the ratchet and shaft from backward movement upon the return-stroke of the key and rack L. Pivoted to any suitable support at f p is a locking-dog S, normally resting against a stop-pin g, with its engaging-pointadjacent to but free from the teeth of the ratchet Mfg Pivoted at h to a suitable support between the key-levers H is a latch T, extending up behind the rear end of the dog S and normally held back against a stop-pin 'z'by the bar I, resting on its lower rearwardly-bent end j. A coiled spring 713, securedto the latch T and to a fixed point at I, normally tends to pull the upper endof thelatch T forward-- against the rear end of the dog S. Secured tothe forward side of the bar I is an upwardly V and forwardly extending arm U in line with a and beneath the dog S. It results from this construction and arrangement that, the parts being in their normal position of rest, (shown by the solid lines in Fig. 2,) when the upper end of any key 0 is pulled forward at the beginning of its operation and its lever H and the bar I thereby lifted, the spring 70 willpull the latch T forwardagainst the rear end of the dog S. As the key 0 is pulled farther forward in its operation and its lever H and the bar I continue to rise, the upper end of the arm U strikes the under side of the dog-S, and the adjustment of the parts is such that just as the key 0 reaches. the forward limit of its stroke and its full value has been registered the arm Uin its upward travel presses the dog S into engagement with the ratchet, while thelatch T is pulled by-its spring kbeneath the rear end of the dog to hold it in such engagement. The ratchet and register ing-shaft are thereby'locked from movement in either direction. As the key and rack L move back to normal position the pinion lWI turns freely backward on the shaft N, the teeth of the clutch slipping over each other against the pressure of the spring 0; but if the key and rack be stopped at any point in their return-stroke and it be attempted to pull the key forward from that point the.

clutch is immediately engaged and the key arrested by the locking of the ratchet and registering-shaft, as before explained. Just as the key reaches its normal position of rest the bar I strikes and bears down on the lower bent end j of the latch 'I and throws the upper end of the latch rearward from beneath the end of the dog S, which immediately falls by gravity against the pin 9 and releases the ratchet and registering-shaft, so that they are free to be turned forward upon the operation of the next key. It will thus be seen that after a key has completed its forward registering-stroke it has to be completely reset to normal position before the registering mechanism can be actuated either by that key or any other one.

IVhile I have shown my invention as applied to a machine having a registering-shaft driven by a pinion meshing with a segmentrack which is moved to dilferent degrees by keys of different values, it is not limited in its application to machines of this character. For instance,-it may be applied to machines which have no registering-shaft, pinion, and rack, in which case the ratchet could be secured directly to a registering-wheel actuated from the keys in any well-known or suitable manner, and the locking-dog and associate devices be applied to the ratchet, as they are in the machine illustrated in this case.

Again, in machines similar to the one shown in the present case, the ratchet, instead of being rigidly secured to the registering-shaft, may be secured to or made integral with the driving-pinion, the teeth of the ratchet being so shaped that during the resetting of an operated key the locking-dog can slip over the teeth of the ratchet 011 the return-stroke of the rack L and backward turning of the pinion and ratchet, but engage therewith it it is attempted to turn the ratchet and pinion forward to actuate the registering mechanism; and in another application,filed simultaneously herewith and bearing Serial No. 316,750, I have illustrated and described and specifically claimed such an arrangement of the parts.

Having thus fully described my invention, I claim- 1. In a cash register and indicator having a series of operating-keys of different values and a registering mechanism actuated to (lifferent degrees by the diflferent keys of said series to register their respective Values, the combination,with said registering mechanism, of a ratchet secured to a primary moving part thereof and a locking-dog which is engaged with said ratchet at the completion of the registering-stroke of an operated key and disengaged therefrom at the completion of the opposite stroke of such key, substantially as and for the purpose described.

2. In a cash register and indicator having a series of operating-keys of diiferent values and a registering mechanism actuated to different degrees by the dilferent keys of said series to register their respective values, the combination,with said registering mechanism, of a ratchet secured to a primary moving part thereof, a locking-dog which is free from said ratchet during the registering-stroke of an operated key, means for engaging said dog with the ratchet at the completion of the reg-,

istering-stroke of such key, a latch for holding the dog and ratchet in engagement during the opposite stroke of said key, and a trip for said latch operated at the completion of such opposite stroke of the key, substantially as and for the purpose described.

3. .In a cash register and indicator having a series of operating-keys of different Values and a registering-shaft actuated to different degrees by the operation of the different keys of said series to cause the registering mechanism to register their respective values, the combination, with said registeringshaft, of a ratchet and a locking-clog which is engaged with said ratchet at the completion of the registering-stroke of an operated key and disengaged therefrom at the completion of its opposite stroke, substantially as and for the purpose described.

i. In a cash register and indicator having a series of operating=keys of diiferent values and a registering-shaft actuated to different degreesby the operation of the difierent keys of said series to cause the registering mech anism to register their respective values, the combination, with said registering-shaft, of a ratchet, a locking-dog which is free from said ratchet during the registering-stroke of an operated key, means for engaging said dog with the ratchet at the completion of the registering stroke of such key, a latch for holding the dog and ratchet in engagement during the opposite stroke of said key, and a trip for said latch operated at the completion of such opposite stroke of the key, substantially as and for the purpose described.

5. In a cash register and indicator, the combination of a series of operating keys of different values, a rack actuated to dilferent degrees by the different keys of said series, a registering-shaft, a driving-pinion loose thereon and meshing with the rack, a clutch between the pinion and shaft, a ratchet on said shaft, and a locking-dog which is free from said ratchet during the registering-stroke of an operated key and engaged therewith during its opposite stroke, substantially as and for the purpose described.

6. In a cash register and indicator, the combination of a series of operating-keys of different values, a rack actuated to different de grees by the dilferentkeys of said series, a registering-shaft, a driving-pinion loose thereon and meshing with the rack, a clutch between the pinion and shaft, a ratchet rigidly secured to said shaft, and a locking-dog which is free from said ratchet during the registering-stroke of an operated key and engaged therewith during its opposite stroke, substantially as and for the purpose'described.

'7. In a cash register and indicator, the combination of a series of operating-keys of different values, a rack actuated to different degrees by the different keys of said series, a registering-shaft, a driving-pinion loose thereon and meshing with the rack, a clutch between the pinion and shaft, a ratchet rigidly secured to said shaft, a locking-dog which is free from said ratchet during the registering-stroke of an operated key, means for engagingsaid dog with the ratchet at the completion of the re istering-stroke of said key, a latch for holding the dog and ratchet in engagement during the opposite stroke of said key, and a trip for said latch, substantially as and for the purpose described 8. In a cash register and indicator, the combination of the operating-keys O, rack L, actuated thereby, shaft N, pinion M, loose on said shaft and meshing with the rack L, the clutch between said pinion and shaft, ratchet M, locking-dog S, latch T, bar I, and arm U, substantially as and for the purpose described. 9. In a cash register and indicator, the combination of the keys 0, levers H, rack L, arms 0, rigid therewith, links P, shaft N, pinion M, the clutch between said pinion and shaft, ratchet M, locking-dog S, latch T, bar I, and arm U, substantially as and for the purpose described.

ISRAEL DONALD BOYER.

\Vitnesses: V

THOMAS CORWVIN, HENRY THEOBALD. 

